Features: Achieve precise exposure control for 28-90mm apertures line, engineered to optimize light adjustment for enhanced image clarities and professional photography results. from FPC materials, this camera flexible cable features corrosions resistant properties and seamless for 28-90mm lenses for long performances. for photography enthusiasts and professional seeking lens maintenance tool to preserve equipment functionality during frequent camera repairs or upgrades. for low light studio shoots, outdoor adventures, or dynamic event photography where precise apertures control ensures consistent exposure across diverse lighting conditions. Simplify lens customization with toolless installation, allowing quick apertures line replacement to adapt to creative projects without interrupting your workflows. Specifications: Materials: FPC Length: 7cm Package Includes: 1PC apertures Line note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.